4-Acetamidobenzenesulfonic Acid

• CAT Number: R050712
• CAS Number: 121-62-0
• Molecular Formula: C8H9NO4S
• Molecular Weight: 215.223
• Purity: ≥95%
• Synonyms: N-Acetylsulfanilic Acid; Acetanilide-p-sulfonic Acid; 4-(Acetylamino)benzenesulfinic Acid; p-Sulfinoacetanilide
• Storage: -20 ℃
• IUPAC Name: 4-acetamidobenzenesulfonic acid
• InChI: InChI=1S/C8H9NO4S/c1-6(10)9-7-2-4-8(5-3-7)14(11,12)13/h2-5H,1H3,(H,9,10)(H,11,12,13)
• InChIKey: ZQPVMSLLKQTRMG-UHFFFAOYSA-N
• SMILES: CC(=O)NC1=CC=C(C=C1)S(=O)(=O)O

4-Acetamidobenzenesulfonic acid, also known as p-toluenesulfonamide, is an organic compound with applications in chemical synthesis and pharmaceutical manufacturing. It consists of an acetamide group (-NHCOCH3) attached to a benzene ring with a sulfonic acid (-SO3H) group. This compound serves as a reagent in organic reactions, particularly in the formation of amides and as a sulfonating agent. In pharmaceuticals, it is used as a precursor for the synthesis of various drugs and active pharmaceutical ingredients (APIs).